Flexible Corrugated tube Environmental Friendly flame retardant" is a type of corrugated tube that is flexible, environmentally friendly, and flame retardant. It is commonly used in electrical wiring, plumbing, and HVAC systems to protect and organize cables and pipes. This product is made from materials that are designed to be sustainable and eco-friendly, while also providing excellent flame retardant properties to ensure safety in case of fire. It is flexible and easy to install, making it a popular choice for a wide range of applications.